Main Page | See live article | Alphabetical index Tissue expansion is a technique used by plastic and restorative surgeons to cause the body to grow additional skin. Keeping human skin under tension causes new skin cells to form and the amount of skin to increase. This may be accomplished by the implantation of inflatable balloons under the skin. The increase is permanent. Tissue expansion has also been used by lay persons who have developed the technique of foreskin restoration. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.